Your power is 1200 watts ⇒ answer D
Explanation:
Power is the rate of change of the work done
→ Power = Work done ÷ time
→ Work = Force × distance
→ Power = (Force × distance) ÷ time
It takes 600 N of force to move a stalled truck 30 meters and you
do it in 15 seconds
→ Force = 600 N
→ Distance = 30 meters
→ Time = 15 seconds
Substitute these values in the rule above
→ Power = (600 × 30) ÷ 15
→ Power = 18000 ÷ 15
→ Power = 1200 watts
Your power is 1200 watts
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Gamma radiation could be used to sterilize plastic petri plates in a plastic wrapper.
Answer: Option E
<u>Explanation:
</u>
It is known that radioactive radiations have greater ionizing powers compared to other electromagnetic radiations. Among the radioactive radiations, gamma rays are the most ionizing radiation.
So they are widely used in sterilizing process. As the penetration power of gamma is more compared to alpha and beta, in order to kill microorganisms gamma radiations are used.
When plastic petri plates wrapped with plastic are bombarded or sterilizing with gamma rays, the rays will ionise the micro-organism. Thus mutilating their DNA and preventing their reproduction.
C.) Electron shells or cloud! :)
Answer:
118.166 volt
Explanation:
We have given number of turns N =345
Sides of the rectangular coils is 12 cm =0.12 m
So area A =0.12×0.12=0.0144 
Magnetic field B =0.45 T
Angular speed =505 rpm
Speed in rad/sec 
The emf is given by 
For maximum emf sinwt =1
So 
Real and erect
Explanation
